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SCIENCE AND TECHNOLOGY OF CEREALS,OILS AND FOODS
2015年
3期
105-109
,共5页
卢慧勇%舒在习%曹阳%贾然
盧慧勇%舒在習%曹暘%賈然
로혜용%서재습%조양%가연
动力学模型%保质期%米糠
動力學模型%保質期%米糠
동역학모형%보질기%미강
dynamic model%storage life%rice bran
将米糠置于不同温度下进行储藏实验,探讨在保质期内,不同储藏温度对米糠酸价(AV)和过氧化值(POV)影响,以温度-AV /POV 之间的一级化学反应动力学模型为基础,建立温度与保质期的关系式,预测米糠在不同储藏温度下的保质期。结果表明:米糠保质期(t)与储藏温度(T)之间存在对数关系,对数方程为:lnt =-0.0313T +4.9592。根据对数方程,代入不同的温度 T,可推算预测相应的米糠保质期。
將米糠置于不同溫度下進行儲藏實驗,探討在保質期內,不同儲藏溫度對米糠痠價(AV)和過氧化值(POV)影響,以溫度-AV /POV 之間的一級化學反應動力學模型為基礎,建立溫度與保質期的關繫式,預測米糠在不同儲藏溫度下的保質期。結果錶明:米糠保質期(t)與儲藏溫度(T)之間存在對數關繫,對數方程為:lnt =-0.0313T +4.9592。根據對數方程,代入不同的溫度 T,可推算預測相應的米糠保質期。
장미강치우불동온도하진행저장실험,탐토재보질기내,불동저장온도대미강산개(AV)화과양화치(POV)영향,이온도-AV /POV 지간적일급화학반응동역학모형위기출,건립온도여보질기적관계식,예측미강재불동저장온도하적보질기。결과표명:미강보질기(t)여저장온도(T)지간존재대수관계,대수방정위:lnt =-0.0313T +4.9592。근거대수방정,대입불동적온도 T,가추산예측상응적미강보질기。
The rice bran was stored in different temperature.The effect of different storage temperatures on acid value(AV)and peroxide value(POV)of rice bran was discussed.The relationship between tem-perature and storage life was set based on the temperature -AV /POV first order chemical reaction kinet-ics model to predict the storage life of rice bran under different storage temperature.The result showed:there was a logarithmic relationship between the storage life (t)of rice bran and storage temperature (T),the relation is:lnt =-0.031 3T +4.959 2,the storage life can be calculated by substituting dif-ferent temperature based on the relation.